Time-resolved second-order correlations of microcavity photons

TL;DR

This paper provides a theoretical analysis of the time-dependent second-order photon correlations in a microcavity with an embedded quantum dot, revealing oscillatory and decay behaviors under different pumping conditions.

Contribution

It derives analytical expressions for g2(t) in both strong and weak coupling regimes, highlighting the nonmonotonous decay time dependence on pumping.

Findings

Rabi oscillations at moderate pumping

Monoexponential decay at high pumping

Decay time peaks at self-quenching transition

Abstract

The time dependence of the correlations between the photons, emitted from the microcavity with embedded quantum dot under incoherent pumping, is studied theoretically. Analytical expressions for the second-order correlation function g2(t) are presented in strong and weak coupling regimes. At moderate pumping the correlation function demonstrates Rabi oscillations, while at larger pumping it shows monoexponential decay. The decay time of the correlations nonmonotonously depends on the pumping value and has a maximum corresponding to the self-quenching transition.